vrb – Verbatim macros in plain TeX

A self-con­tained set of ver­ba­tim macros, pro­vid­ing both block
(\ver­ba­tim ... \end­ver­ba­tim) and in-line (|...|)
ver­ba­tim con­structs. Can also sup­port line-num­ber­ing of ver­ba­tim
blocks and ver­ba­tim file in­clu­sion.